is the english grammar correct also.
today i have my math tutor from 9 to 12 so i am trying to finish this up

Can you please explain this one: yo era capaz a de conseguir = (you must drop "a") = yo era capaz de conseguir --i cant find the error i made.

El evento más importante para mí del año pasado fue cuando entregué mi proyecto de historía. When I was in eighth grade history in Ms. Harvey's class, I had spent three months working on my report. The day the report was due; I was nervous as I had to do a presentation. I recieved an A for my work. This showed me that I was capable of getting a good grade on a challenging project. In addition, another important event is how badly the U.S. economy is doing.

yo era capaz a de conseguir = the problem is that you have two prepositions, both "a" and "de" and you should have only one. It should look like: "yo era capaz de conseguir" = do you see the difference now?

estaba = en el grado ocho = drop "=" = estaba en el grado ocho

Harvey. Yo trabajé tres meses = There should not be a period after Harvey because then it is an incomplete sentence. It should read: "Harvey, yo trabajé, etc."